Photographic element provided with a backing layer and method fo

Details Photographic element provided with a backing layer and method fo Photographic element provided with a backing layer and method fo

1994-05-18

1994-12-27

Brammer, Jack R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430523, 430531, 430533, 430534, G03C 176

Patent

active

053765184

ABSTRACT:
A photographic element that is useful as an imaging master in the field of graphic arts is comprised of a dimensionally-stable polyester film having a radiation-sensitive silver halide emulsion layer on one side thereof and having on the opposite side, in order, a latex subbing layer and a backing layer. The backing layer is comprised of gelatin, a matting agent, a filter dye and a blocked gelatin-hardening agent. In the manufacture of the photographic element, a high temperature heating step is employed to activate the blocked gelatin-hardening agent and thereby harden the backing layer.

REFERENCES:
patent: 2870013 (1959-01-01), Jeffreys
patent: 3819608 (1974-06-01), Yamamoto et al.
patent: 4977065 (1990-12-01), Westfal et al.
patent: 4997735 (1991-05-01), Nitschke et al.
patent: 5077185 (1991-10-01), Cho et al.

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